CN113332112A - Intelligent optical vision training device - Google Patents
Intelligent optical vision training device Download PDFInfo
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- CN113332112A CN113332112A CN202110651897.4A CN202110651897A CN113332112A CN 113332112 A CN113332112 A CN 113332112A CN 202110651897 A CN202110651897 A CN 202110651897A CN 113332112 A CN113332112 A CN 113332112A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H5/00—Exercisers for the eyes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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Abstract
The invention provides an intelligent optical vision training device which comprises a projection installation machine body, wherein an assembly installation cavity is formed in the projection installation machine body, and a projection training assembly is arranged in the assembly installation cavity; projection training subassembly is including installing the casing, be equipped with electrical source controller board, array light subassembly and projection subassembly in the installation casing, electrical source controller board fixed connection is in subassembly installation cavity bottom, electrical source controller board is used for control to give projection subassembly with the power supply of array light subassembly, simultaneous control the scintillation of array light subassembly, projection subassembly be used for with the light of array light subassembly is enlargied and is projected on the white wall. The invention can solve the technical problems that the conventional vision training instrument is large in size, is not easy to carry and is single and fixed in training places.
Description
Technical Field
The invention relates to the technical field of optical vision, in particular to an intelligent optical vision training device.
Background
The existing vision training instrument is in the form of a large circular light rotary disc hung on a wall or a common paper poster on which eye muscle movement diagrams are drawn, wherein the light rotary disc is large in size and difficult to carry, a trainer can only use at home or in a single fixed place, meanwhile, lights on the light rotary disc are sequentially lightened according to the eye muscle movement diagrams, and the training process is tedious.
Disclosure of Invention
The invention provides an intelligent optical vision training device, which is used for solving the technical problems.
In order to solve the technical problem, the invention discloses an intelligent optical vision training device which comprises a projection installation machine body, wherein an assembly installation cavity is arranged in the projection installation machine body, and a projection training assembly is arranged in the assembly installation cavity;
projection training subassembly is including installing the casing, be equipped with electrical source controller board, array light subassembly and projection subassembly in the installation casing, electrical source controller board fixed connection is in subassembly installation cavity bottom, electrical source controller board is used for control to give projection subassembly with the power supply of array light subassembly, simultaneous control the scintillation of array light subassembly, projection subassembly be used for with the light of array light subassembly is enlargied and is projected on the white wall.
Preferably, the array lighting assembly comprises an installation lamp plate, the installation lamp plate is fixedly connected with the power supply controller board, one LED lamp is arranged in the center of the installation lamp plate, another plurality of LED lamps are annularly arrayed around the installation lamp plate, and the LED lamps are electrically connected with the power supply controller board;
the power supply controller board controls the plurality of LED lamps to be sequentially lightened according to a certain sequence.
Preferably, the projection mounting machine body is internally provided with an adjusting worm, the adjusting worm is located a key connection at one end outside the projection mounting machine body is provided with a manual adjusting tooth, two symmetrically arranged adjusting worm wheels are rotatably connected in the projection mounting machine body through a worm wheel rotating shaft, the adjusting worm wheels are meshed with the adjusting worm, and an elastic band is wound on the worm wheel rotating shaft.
Preferably, the projection assembly comprises a prism and a plurality of lamp cup lenses, the lamp cup lenses correspond to the LED lamps one by one, a light source accommodating cavity is formed in the bottom of each lamp cup lens and used for accommodating the LED lamps, and the prism is arranged right in front of the lamp cup lenses;
each lamp cup lens is provided with different animal patterns.
Preferably, elastic bands are arranged on the left side and the right side of the projection installation machine body, one end, far away from the projection installation machine body, of each elastic band is connected with an adjusting mechanism shell, and an elasticity adjusting mechanism is arranged in each adjusting mechanism shell;
the tightness adjusting mechanism comprises a first meshing adjusting tooth, the first meshing adjusting tooth is rotatably connected into the adjusting mechanism shell through a connecting rotating shaft, one end of the connecting rotating shaft, far away from the first meshing adjusting tooth, is connected with a manual adjusting tooth in a key mode, a first mechanism mounting cavity is formed in the adjusting mechanism shell, a first rotating shaft is rotatably connected into the first mechanism mounting cavity, the first rotating shaft is located right above the first meshing adjusting tooth, a second meshing adjusting tooth and a winding drum are connected onto the first rotating shaft in a key mode, the first meshing adjusting tooth and the second meshing adjusting tooth are meshed with each other, two tensioning ropes are wound on the winding drum, second mounting cavities are formed in two sides of the first mechanism mounting cavity, and a tightness adjusting main body is connected into the second mounting cavities in a sliding mode;
the tightness adjusting main body comprises a connecting rod mechanism, the connecting rod mechanism comprises a plurality of connecting rods which are sequentially hinged end to end, an adjusting chute is formed in the side wall of the second installation cavity, an adjusting slide block is fixedly connected to the first hinge point of the connecting rod mechanism and is connected in the adjusting chute in a sliding manner, first buffering elastic pieces are fixedly connected to the upper side wall and the lower side wall of the adjusting chute, a first driving piece is arranged on the adjusting slide block and is used for driving the adjusting slide block to move along the adjusting chute, a horizontal slide block is connected to the tail hinge point of the connecting rod mechanism in a hinged manner and can slide left and right along the second installation cavity, a horizontal chute with a horizontally arranged axis is formed in the second installation cavity, an extending cylinder is connected in the horizontal chute in a sliding manner, and a linear driving piece is arranged on the extending cylinder, the linear driving piece is used for driving the extension barrel to move along the horizontal sliding groove, one end, far away from the winding barrel, of the extension barrel is connected with a clamping seat, an extension barrel mounting hole is formed in the clamping seat, the extension barrel is sleeved in the extension barrel mounting hole, the bottom of the extension barrel mounting hole is fixedly connected with a second buffering elastic piece, the tensioning rope on the winding barrel penetrates through the extension barrel and is fixedly connected with the bottom of the extension barrel mounting hole, one end, far away from the extension barrel mounting hole, of the clamping seat in the vertical direction is fixedly connected with the horizontal sliding block, and one end, far away from the horizontal sliding block, of the clamping seat is connected with the elastic band.
Preferably, elastic band installation cavities are symmetrically arranged on two sides of the projection installation machine body, elastic band clamping mechanisms are arranged in the elastic band installation cavities and used for clamping elastic bands, elastic band installation grooves are formed in the elastic band installation cavities, the upper side walls and the lower side walls of the elastic band installation grooves are communicated with the elastic band installation cavities, and the elastic band installation grooves are used for installing the elastic bands;
the elastic band clamping mechanism comprises two symmetrically arranged push buttons, two symmetrically arranged T-shaped slideways are arranged in the elastic band mounting cavity, the T-shaped slideways are divided into a horizontal slideway and a vertical slideway, the push buttons are slidably mounted in the horizontal slideway, second driving pieces are arranged on the push buttons and are used for driving the push buttons to slide along the horizontal slideway, one ends of the push buttons are provided with push platforms, parts between the push platforms and the projection mounting machine body on the push buttons are sleeved with first springs, one ends of the push buttons far away from the push platforms are fixedly connected with trapezoidal blocks, two symmetrically arranged inclined planes are arranged on the trapezoidal blocks, wedge blocks are symmetrically and slidably connected in the vertical slideway relative to the horizontal slideway, inclined planes matched with the inclined planes of the trapezoidal blocks are arranged at one ends of the wedge blocks close to the trapezoidal blocks, and one ends of the wedge blocks far away from the trapezoidal blocks are fixedly connected with the vertical slideway through second springs, a clamping driving table is symmetrically and slidably connected in the vertical slide way relative to the horizontal slide way, a connecting short rod is arranged on the clamping driving table, the clamping driving table is connected with a first clamping mechanism through the connecting short rod, a driving rack is arranged on the clamping driving table, and the clamping driving table is connected with a second clamping mechanism through the driving rack;
the first clamping mechanism comprises a clamping connecting rod, a connecting groove is formed in the clamping connecting rod, the connecting short rod is connected in the connecting groove in a sliding mode, the middle of the connecting short rod is rotatably connected with the inner wall of the elastic band mounting cavity, and one end, far away from the connecting short rod, of the connecting short rod is connected with a clamping block in a hinged mode;
the second clamping mechanism comprises a first rotating shaft and a second rotating shaft which are rotatably connected in the elastic band mounting cavity, the first rotating shaft and the second rotating shaft are positioned on the same horizontal line, a first clamping gear and a first chain wheel are connected to the first rotating shaft in a key mode, the second rotating shaft is connected with a second clamping gear and a second chain wheel in a key way, the first clamping gear is meshed with the driving rack, a meshing chain is arranged between the first chain wheel and the second chain wheel, the meshing chain is meshed with the first chain wheel and the second chain wheel, a T-shaped clamping body is arranged between the two second clamping gears, the T-shaped clamping body comprises a double-sided meshing rod and a clamping brake block, meshing teeth are arranged on the left side face and the right side face of the double-sided meshing rod, and the two second clamping gears are meshed with the double-sided meshing rod through the meshing teeth.
Preferably, the method further comprises the following steps:
training posture reminder system, training posture reminder system sets up in the projection installation internal, training posture reminder system is used for the suggestion user whether the posture when carrying out vision training is qualified, training posture reminder system includes:
the detection and analysis unit is electrically connected with the prompt unit and is used for judging whether the training posture of the user is qualified or not, and if the training posture of the user is not qualified, the analysis unit triggers the prompt unit to work;
the detection and analysis unit comprises an angle sensor and an infrared sensor, the angle sensor and the infrared sensor are both arranged in the projection installation machine body, the angle sensor is used for detecting an included angle between the head of a user and the horizontal direction, the infrared sensor is used for detecting an actual distance between the user and a white wall, when the actual distance between the user and the white wall is within an optimal effective training distance range and the included angle between the head of the user and the horizontal direction is within an optimal effective training pitch angle range, the detection and analysis unit circularly and repeatedly works, and when the actual distance between the user and the white wall exceeds the optimal effective training distance range or the included angle between the head of the user and the horizontal direction exceeds the optimal effective training pitch angle range, the detection and analysis unit triggers the prompt unit to work;
the prompting unit comprises a laser indicator and a controller, the controller is electrically connected with the laser indicator, the laser indicator is arranged at the geometric center of the projection installation body, the laser indicator can emit red light rays and blue light rays, a light beam change-over switch is arranged in the laser indicator, the light beam change-over switch can perform light beam change-over, and the controller controls the light beam change-over switch to change over light beams, so that the prompting unit comprises the following steps:
the method comprises the following steps: calculating a distance deviation coefficient between an actual distance between the user and the white wall and an optimal effective training distance range based on an infrared sensor and formula (1):
wherein the content of the first and second substances,
is the distance deviation coefficient between the actual distance between the user and the white wall and the optimal effective training distance range, ln is the natural logarithm with e as the base, epsilon1Is a measurement error coefficient of the infrared sensor, cstIs the actual speed of the electromagnetic wave of the infrared sensor propagating in the air, c0The speed of light propagation in air, DmaxMaximum distance for said optimal effective training, DminMinimum distance, t, for said optimal effective training1The time taken for the electromagnetic wave of the infrared sensor to propagate between the user and the white wall;
step two: based on an angle sensor and formula (2), calculating an angle deviation coefficient between the included angle of the head of the user and the horizontal direction and the optimal effective training pitch angle range:
wherein the content of the first and second substances,
the angle deviation coefficient between the included angle between the head of the user and the horizontal direction and the optimal effective training pitch angle range is epsilon2Is the error coefficient of the angle sensor, t2Is the detection time of the angle sensor, thetastiIs an angle detection value theta at the ith moment of the angle sensormaxFor optimum effective training of maximum pitch angle, thetaminTraining the minimum elevation angle for the best and effective training, wherein the elevation angle and the elevation angle are positive numbers;
step three: the controller compares the distance deviation coefficient between the actual distance between the user and the white wall and the optimal effective training distance range, if the distance deviation coefficient between the actual distance between the user and the white wall and the optimal effective training distance range is larger than the preset distance deviation coefficient between the actual distance between the user and the white wall and the optimal effective training distance range, the controller controls the light beam change-over switch to be converted into blue light, the user automatically adjusts the distance between the light beam change-over switch and the white wall, when the user adjusts the position in place, the blue light is turned off, the controller compares the angle deviation coefficient between the included angle between the head of the user and the horizontal direction and the optimal effective training pitch angle range with the preset angle deviation coefficient between the included angle between the head of the user and the horizontal direction and the optimal effective training pitch angle range, and if the angle deviation coefficient between the included angle between the head of the user and the horizontal direction and the optimal effective training pitch angle range is larger than the preset angle deviation coefficient between the head of the user and the horizontal direction and the optimal effective training pitch angle range And if the angle deviation coefficient of the included angle between the head of the user and the horizontal direction and the preset angle deviation coefficient between the optimal effective training pitch angle ranges are larger than the preset angle deviation coefficient, the controller controls the light beam conversion switch to convert the light beam into red light, and the user adjusts the position of a light spot of the red light on a white wall by self to enable the light spot to be located at the central point of the light projection of the array light component.
Preferably, the method further comprises the following steps:
the ultrasonic ranging system is arranged on the projection installation body and used for prompting the user to use the actual distance between the white wall projected by the projection assembly and the user:
the ultrasonic distance measuring system comprises an ultrasonic transmitting unit, an ultrasonic receiving unit, a timer and a temperature sensor, wherein the ultrasonic transmitting unit, the ultrasonic receiving unit, the timer and the temperature sensor are electrically connected, and the ultrasonic distance measuring system comprises:
the ultrasonic wave transmitting unit is used for transmitting ultrasonic waves;
the ultrasonic receiving unit is used for receiving ultrasonic waves reflected by the white wall;
the timer is used for counting the interval time of the ultrasonic wave emitted by the ultrasonic wave emitting unit;
the timer is used for detecting the time from the ultrasonic wave transmitting unit transmitting the ultrasonic wave to the ultrasonic wave receiving unit receiving the ultrasonic wave;
the temperature sensor is used for detecting the temperature of the external environment;
calculating an actual distance between a white wall projected by the projection assembly and a user based on the ultrasonic wave transmitting unit, the ultrasonic wave receiving unit, the timer and the temperature sensor:
wherein d isstThe actual distance between a white wall projected by the projection assembly and a user, theta is a measurement error coefficient of the ultrasonic distance measurement system, TstIs a value detected by the temperature sensor, T0Is a reference temperature of the external environment,
the wave speed of the ultrasonic wave transmitted by the ultrasonic wave transmitting unit is t, the detection value of the timer is t, and the counting frequency of the timer is f;
and if the actual distance between the white wall projected by the projection component and the user exceeds the distance between the user and the white wall to be the optimal distance range for vision training, the ultrasonic distance measuring system prompts the user to adjust the distance between the user and the white wall.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a rear view of the projection-mounting body of the present invention.
Fig. 2 is a front view of the projector mount body of the present invention.
Fig. 3 is a top view of the projector mount body of the present invention.
Fig. 4 is a side view of the projection mount body of the present invention.
Fig. 5 is a schematic structural diagram of a projection module and an array lamp module according to the present invention.
FIG. 6 is an enlarged view B of the invention shown in FIG. 5.
FIG. 7 is a diagram of an LED light array and blinking sequence according to the present invention.
Fig. 8 is a schematic view of the installation of the adjusting worm and the adjusting worm wheel of the present invention.
FIG. 9 is a schematic view of the structure of the slack adjuster mechanism of the present invention.
FIG. 10 is an enlarged view A of a portion of FIG. 9 according to the present invention.
Fig. 11 is a schematic view of the elastic band clamping mechanism according to the present invention.
In the figure: 1. an LED lamp; 2. a projection installation body; 200. an adjustment mechanism housing; 2000. a component mounting cavity; 201. elastic bands; 3. a projection training component; 300. a power supply controller board; 301. a projection assembly; 3010. a prism; 3011. a lamp cup lens; 3012. a light source accommodating cavity; 302. an array light assembly; 3020. installing a lamp panel; 303. installing a shell; 4. a tightness adjusting mechanism; 400. a first mechanism mounting cavity; 4000. a first rotating shaft; 4001. a second meshing adjustment tooth; 4002. a bobbin; 4003. tensioning the thread rope; 401. manually adjusting the teeth; 402. a second mounting cavity; 4020. adjusting the sliding chute; 4021. a horizontal chute; 403. a tightness adjusting body; 4030. a link mechanism; 4031. a connecting rod; 4032. adjusting the sliding block; 4033. a first cushion elastic member; 4034. a horizontal slider; 4035. an extension cylinder; 4036. a linear drive; 4037. an extension cylinder mounting hole; 4038. a second buffer elastic member; 404. a clamping seat; 405. adjusting the worm; 4050. adjusting the worm gear; 4051. a worm gear shaft; 406. a first meshing adjustment tooth; 407. connecting the rotating shaft; 5. a tension band clamping mechanism; 500. an elastic band installation cavity; 5000. elastic band mounting grooves; 501. a push button; 5010. pushing the platform; 5011. a trapezoidal block; 5012. a first spring; 502. a T-shaped slideway; 5020. a horizontal slideway; 5021. a vertical slideway; 5022. a wedge block; 5023. a second spring; 5024. clamping a driving table; 5025. a drive rack; 5026. connecting a short rod; 503. a first clamping mechanism; 5030. clamping a connecting rod; 5031. connecting grooves; 5032. clamping a block; 504. a second clamping mechanism; 5040. a first rotating shaft; 5041. a second rotating shaft; 5042. a first clamping gear; 5043. a first sprocket; 5044. a second clamping gear; 5045. a second sprocket; 5046. a meshing chain; 5047. a T-shaped clamping body; 5048. a double-sided engagement lever; 5049. and clamping the brake block.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
In addition, the descriptions related to the first, the second, etc. in the present invention are only used for description purposes, do not particularly refer to an order or sequence, and do not limit the present invention, but only distinguish components or operations described in the same technical terms, and are not understood to indicate or imply relative importance or implicitly indicate the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions and technical features between various embodiments can be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not be within the protection scope of the present invention.
The present invention provides the following examples:
example 1
The embodiment of the invention provides an intelligent optical vision training device, which comprises a projection installation machine body 2, wherein an assembly installation cavity 2000 is arranged in the projection installation machine body 2, and a projection training assembly 3 is arranged in the assembly installation cavity 2000;
The working principle and the beneficial effects of the technical scheme are as follows: during the use, will projection installation organism 2 wears on the forehead, projection subassembly 301 will array light subassembly 302's light is enlargied and is projected on the white wall, wherein power controller board 300 control array light subassembly 302 glimmers in proper order, the order of array light subassembly 302 scintillation is as shown in figure 7, and the user eyeball is followed array light subassembly 302's scintillation rotates, intelligent optics eyesight training device volume is less, portable, and does not choose the training place, has solved the great difficult technical problem who carries and the single fixed in training place of conventional eyesight training appearance volume.
Example 2
On the basis of the foregoing embodiment 1, the array light assembly 302 includes an installation light panel 3020, the installation light panel 3020 is fixedly connected to the power supply controller board 300, one LED lamp 1 is disposed in the center of the installation light panel 3020, another plurality of LED lamps 1 are arranged in an annular array around the installation light panel 3020, and the LED lamps 1 are electrically connected to the power supply controller board 300;
the power supply controller board 300 controls the plurality of LED lamps 1 to be sequentially turned on in a certain order;
the projection assembly 301 comprises a prism 3010 and a plurality of lamp cup lenses 3011, the lamp cup lenses 3011 correspond to the LED lamps 1 one by one, a light source accommodating cavity 3012 is formed at the bottom of the lamp cup lenses 3011, the light source accommodating cavity 3012 is used for accommodating the LED lamps, and the prism 3010 is installed right in front of the lamp cup lenses 3011;
each lamp cup lens 3011 is provided with different animal patterns;
be equipped with in the projection installation organism 2 and adjust worm 405, it is located to adjust worm 405 the outer end key-type connection of projection installation organism 2 has manual regulation tooth 401, rotate through worm wheel pivot 4051 in the projection installation organism 2 and be connected with two symmetrical arrangement's regulation worm wheel 4050, adjust worm wheel 4050 with adjust worm 405 intermeshing, the winding has elastic cord 201 in the worm wheel pivot 4051.
The working principle and the beneficial effects of the technical scheme are as follows: power controller board 300 control is a plurality of LED lamp 1 lights in proper order according to fig. 7, the design of lamp cup lens 3011 can make LED lamp 1's light is more even, lamp cup lens 3011 is equipped with different animal pattern and can makes the user not dry when training, prism 3010's design can with the image of array light subassembly 302 enlargies the projection (if can pass through the projection with the light of former array light subassembly 302 and enlarge ten times), when needs are adjusted during the length of elastic cord 201, rotate manual regulation tooth 401, adjust worm 405 and rotate, it drives to adjust worm wheel 4050 rotates, it drives to adjust worm wheel 4050 rotation worm wheel pivot 4051 rotates, worm wheel pivot 4051 rotates and drives the length of elastic cord 201 can be adjusted.
Example 3
On the basis of embodiment 1 or 2, the projection installation body 2 includes an adjusting mechanism housing 200 and elastic bands 201 symmetrically arranged on the left and right sides of the adjusting mechanism housing 200, and an elasticity adjusting mechanism 4 is arranged in the adjusting mechanism housing 200;
the tightness adjusting mechanism 4 comprises a first meshing adjusting tooth 406, the first meshing adjusting tooth 406 is rotatably connected in the adjusting mechanism shell 200 through a connecting rotating shaft 407, one end of the connecting rotating shaft 407 far away from the first meshing adjusting tooth 406 is keyed with a manual adjusting tooth 401, a first mechanism mounting cavity 400 is formed in the adjusting mechanism housing 200, a first rotating shaft 4000 is rotatably connected in the first mechanism mounting cavity 400, the first rotating shaft 4000 is positioned right above the first meshing adjustment tooth 406, a second meshing adjustment tooth 4001 and a bobbin 4002 are keyed on the first rotating shaft 4000, the first engagement regulating tooth 406 and the second engagement regulating tooth 4001 are engaged with each other, two tensioning ropes 4003 are wound on the bobbin 4002, a second mounting cavity 402 is formed in each of two sides of the first mechanism mounting cavity 400, and a tightness adjusting body 403 is slidably connected in the second mounting cavity 402;
the tightness adjusting body 403 comprises a link mechanism 4030, the link mechanism 4030 comprises a plurality of links 4031 hinged end to end in sequence, an adjusting chute 4020 is formed in the side wall of the second mounting cavity 402, an adjusting slider 4032 is fixedly connected to a first hinge point of the link mechanism 4030, the adjusting slider 4032 is connected in the adjusting chute 4020 in a sliding manner, first buffer elastic members 4033 are fixedly connected to the upper and lower side walls of the adjusting chute 4020, a first driving member is arranged on the adjusting slider 4032 and used for driving the adjusting slider 4032 to move along the adjusting chute 4020, a horizontal slider 4034 is hinged to a tail hinge point of the link mechanism 4030 and can slide left and right along the second mounting cavity 402, a horizontal chute 4021 with a horizontally arranged axis is formed in the second mounting cavity 402, and an extending barrel 4035 is connected in the horizontal chute 4021 in a sliding manner, a linear driving member 4036 is arranged on the extension barrel 4035, the linear driving member 4036 is used for driving the extension barrel 4035 to move along the horizontal sliding groove 4021, one end, away from the bobbin 4002, of the extension barrel 4035 is connected with a clamping seat 404, an extension barrel mounting hole 4037 is formed in the clamping seat 404, the extension barrel 4035 is sleeved in the extension barrel mounting hole 4037, a second buffering elastic member 4038 is fixedly connected to the bottom of the extension barrel mounting hole 4037, the tensioning wire rope 4003 on the bobbin 4002 penetrates through the extension barrel 4035 and is fixedly connected to the bottom of the extension barrel mounting hole 4037, and one end, away from the extension barrel mounting hole 4037 in the vertical direction, of the clamping seat 404 is fixedly connected to the horizontal sliding block 4034.
The working principle and the beneficial effects of the technical scheme are as follows:
when the length of the elastic band 201 needs to be shortened, the manual adjusting tooth 401 is manually rotated counterclockwise, the manual adjusting tooth 401 rotates counterclockwise to drive the first rotating shaft 4000 to rotate counterclockwise, the first rotating shaft 4000 rotates counterclockwise to drive the first engaging adjusting tooth 406 to rotate counterclockwise, the first engaging adjusting tooth 406 rotates counterclockwise to drive the second engaging adjusting tooth 4001 to rotate clockwise, the second engaging adjusting tooth 4001 rotates clockwise to drive the bobbin 4002 to rotate clockwise, the bobbin 4002 rotates clockwise to drive the tensioning cable 4003 to be recovered, and the tensioning cable 4003 pulls the tightness adjusting body 403 to move towards the symmetric center of the adjusting mechanism housing 200, so that the length of the elastic band 201 outside the adjusting mechanism housing 200 is shortened;
when it is desired to expand the length of the elastic band 201, the manual adjustment tooth 401 is manually rotated clockwise, the manual adjusting gear 401 rotates clockwise to drive the first rotating shaft 4000 to rotate clockwise, the clockwise rotation of the first rotating shaft 4000 drives the first meshing adjusting teeth 406 to rotate clockwise, the clockwise rotation of the first meshing adjustment teeth 406 drives the counterclockwise rotation of the second meshing adjustment teeth 4001, the second meshing adjustment teeth 4001 rotates counterclockwise to drive the bobbin 4002 to rotate counterclockwise, the reel 4002 rotates counterclockwise to drive the tensioning rope 4003 to loosen gradually, at the same time, the linear driving member 4036 drives the extension sleeve 4035 to slide along the horizontal sliding groove 4021, so that the extension cylinder 4035 pushes the clamping seat 404 to move away from the symmetry center of the adjustment mechanism housing 200, the length of the elastic band 201 outside the adjusting mechanism shell 200 is increased;
when the linear driving member 4036 cannot work, the first driving member drives the adjusting slider 4032 to move downward along the adjusting sliding groove 4020, the adjusting slider 4032 moves downward to drive the link mechanism 4030 to extend in a direction away from the center of symmetry of the adjusting mechanism housing 200, the link mechanism 4030 extends to drive the horizontal slider 4034 to move in a direction away from the center of symmetry of the adjusting mechanism housing 200 along the second mounting cavity 402, the horizontal slider 4034 pushes the clamping seat 404 to move in a direction away from the center of symmetry of the adjusting mechanism housing 200, and the clamping seat 404 moves to lengthen the length of the elastic band 201 outside the adjusting mechanism housing 200;
first buffering elastic component 4033's design has been avoided adjust slider 4032 slides from top to bottom right adjust spout 4020's striking, prolonged adjust slider 4032's life, second buffering elastic component 4038's design has been avoided extension section of thick bamboo 4035 is right press from both sides the impact of tight seat 404, link mechanism 4030's design has been avoided straight driving piece 4036 can not the during operation projection installation organism 2's normal work, projection installation organism 2's design makes the regulation of elastic cord 201 length is more convenient, and has improved visual training device's adaptability.
Example 4
On the basis of embodiment 1, elastic band installation cavities 500 are symmetrically arranged on two sides of the projection installation machine body 2, an elastic band clamping mechanism 5 is arranged in each elastic band installation cavity 500, each elastic band clamping mechanism 5 is used for clamping an elastic band 201, an elastic band installation groove 5000 is arranged in each elastic band installation cavity 500, the upper side wall and the lower side wall of each elastic band installation groove 5000 are communicated with the corresponding elastic band installation cavity 500, and each elastic band installation groove 5000 is used for installing the corresponding elastic band 201;
the elastic band clamping mechanism 5 comprises two symmetrically arranged push buttons 501, two symmetrically arranged T-shaped slideways 502 are arranged in the elastic band installation cavity 500, the T-shaped slideways 502 are divided into a horizontal slideway 5020 and a vertical slideway 5021, the push buttons 501 are slidably installed in the horizontal slideway 5020, second driving pieces are arranged on the push buttons 501 and used for driving the push buttons 501 to slide along the horizontal slideway 5020, a push platform 5010 is arranged at one end of each push button 501, a first spring 5012 is sleeved on the part, between the push platform 5010 and the projection installation machine body 2, of each push button 501, one end, far away from the push platform 5010, of each push button 501 is fixedly connected with a trapezoidal block 5011, two symmetrically arranged inclined planes are arranged on the trapezoidal block 5011, a wedge 5022 is symmetrically and slidably connected in the vertical slideway 1 relative to the horizontal slideway 5020, one end, close to the trapezoidal block 5011, of each wedge 5022 is provided with an inclined plane matched with the inclined plane of the trapezoidal block 5011, one end, far away from the trapezoidal block 5011, of the wedge-shaped block 5022 is fixedly connected with the vertical slideway 5021 through a second spring 5023, a clamping driving table 5024 is further symmetrically and slidably connected in the vertical slideway 5021 about the horizontal slideway 5020, a connecting short rod 5026 is arranged on the clamping driving table 5024, the clamping driving table 5024 is connected with a first clamping mechanism 503 through the connecting short rod 5026, a driving rack 5025 is arranged on the clamping driving table 5024, and the clamping driving table 5024 is connected with a second clamping mechanism 504 through the driving rack 5025;
the first clamping mechanism 503 comprises a clamping connecting rod 5030, a connecting groove 5031 is formed in the clamping connecting rod 5030, the connecting short rod 5026 is slidably connected into the connecting groove 5031, the middle part of the connecting short rod 5026 is rotatably connected with the inner wall of the elastic band installation cavity 500, and one end, away from the connecting short rod 5026, of the connecting short rod 5026 is hinged with a clamping block 5032;
the second clamping mechanism 504 includes a first rotating shaft 5040 and a second rotating shaft 5041 rotatably connected to the elastic band installation cavity 500, the first rotating shaft 5040 and the second rotating shaft 5041 are located on the same horizontal line, a first clamping gear 5042 and a first sprocket 5043 are keyed to the first rotating shaft 5040, a second clamping gear 5044 and a second sprocket 5045 are keyed to the second rotating shaft 5041, the first clamping gear 5042 is engaged with the driving rack 5025, a meshing chain 5046 is provided between the first sprocket 5043 and the second sprocket 5045, the meshing chain 5046 is engaged with the first sprocket 5043 and the second sprocket 5045, a T-shaped clamping body 5047 is provided between the second clamping gear 5044, the T-shaped clamping body 5047 includes a double-sided meshing rod 5048 and a clamping brake block 5049, meshing teeth are provided on left and right sides of the double-sided meshing rod 5048, the two second clamping gears 5044 are engaged with the double-sided engaging rod 5048 via the engaging teeth.
The working principle and the beneficial effects of the technical scheme are as follows: when in use, the elastic band 201 is inserted into the elastic band installation groove 5000, then the second driving piece drives the push button 501 to slide along the horizontal slide ways 5020 towards the left and right center directions of the elastic band installation cavity 500, the inclined surface of the trapezoidal block 5011 on the push button 501 is matched with the inclined surface of the wedge-shaped block 5022, so that the trapezoidal block 5011 slides towards the direction away from the upper and lower center directions of the elastic band installation cavity 500, the trapezoidal block 5011 slides to push the clamping driving table 5024 to slide towards the direction away from the upper and lower center directions of the elastic band installation cavity 500, and the clamping driving table 5024 slides to drive the first clamping mechanism 503 and the second clamping mechanism 504 to clamp the elastic band 201;
when the first clamping mechanism 503 works, the clamping driving stage 5024 slides to drive the clamping connecting rod 5030 to rotate, the clamping connecting rod 5030 rotates to drive the clamping block 5032 to clamp the elastic band 201, when the second clamping mechanism 504 works, the clamping driving table 5024 slides to drive the driving rack 5025 to move up and down, the driving rack 5025 moves up and down to drive the first clamping gear 5042 to rotate, the first clamping gear 5042 rotates to drive the first chain wheel 5043 to rotate, the first chain wheel 5043 rotates to drive the meshing chain 5046 to transmit, the meshing chain 5046 drives the second chain wheel 5045 to rotate, the second chain wheel 5045 drives the second clamping gear 5044 to rotate, the second clamping gear 5044 rotates to move the T-shaped clamping body 5047 up and down under the action of the double-sided engaging rod 5048, so as to drive the clamping brake block 5049 to clamp the elastic band 201;
compared with the fixed connection of the elastic band 201, the elastic band clamping mechanism 5 is convenient to replace due to the design of the elastic band clamping mechanism 5, and the clamping reliability of the elastic band clamping mechanism 5 is ensured due to the design of the first clamping mechanism 503 and the second clamping mechanism 504 at the same time.
Example 5
On the basis of embodiment 1, the method further comprises the following steps:
training posture reminder system, training posture reminder system sets up in projection installation organism 2, training posture reminder system is used for the suggestion user carries out whether the posture is qualified when eyesight training, training posture reminder system includes:
the detection and analysis unit is electrically connected with the prompt unit and is used for judging whether the training posture of the user is qualified or not, and if the training posture of the user is not qualified, the analysis unit triggers the prompt unit to work;
the detection and analysis unit comprises an angle sensor and an infrared sensor, the angle sensor and the infrared sensor are both arranged in the projection installation machine body 2, the angle sensor is used for detecting an included angle between the head of a user and the horizontal direction, the infrared sensor is used for detecting an actual distance between the user and a white wall, when the actual distance between the user and the white wall is within an optimal effective training distance range and the included angle between the head of the user and the horizontal direction is within the optimal effective training pitch angle range, the detection and analysis unit circularly and repeatedly works, and when the actual distance between the user and the white wall exceeds the optimal effective training distance range or the included angle between the head of the user and the horizontal direction exceeds the optimal effective training pitch angle range, the detection and analysis unit triggers the prompt unit to work;
the prompting unit comprises a laser indicator and a controller, the controller is electrically connected with the laser indicator, the laser indicator is arranged at the geometric center of the projection installation body 2, the laser indicator can emit red light rays and blue light rays, a light beam change-over switch is arranged in the laser indicator, the light beam change-over switch can perform light beam change-over, and the controller controls the light beam change-over switch to change over light beams, and the method comprises the following steps:
the method comprises the following steps: calculating a distance deviation coefficient between an actual distance between the user and the white wall and an optimal effective training distance range based on an infrared sensor and formula (1):
wherein the content of the first and second substances,
the distance deviation coefficient (value is 0.85-0.92) between the actual distance between the user and the white wall and the optimal effective training distance range, ln is the natural logarithm taking e as the base, epsilon1Is a measurement error coefficient of the infrared sensor, cstIs the actual speed of the electromagnetic wave of the infrared sensor propagating in the air, c0The speed of light propagation in air, DmaxMaximum distance for said optimal effective training, DminMinimum distance, t, for said optimal effective training1The time taken for the electromagnetic wave of the infrared sensor to propagate between the user and the white wall;
step two: based on an angle sensor and formula (2), calculating an angle deviation coefficient between the included angle of the head of the user and the horizontal direction and the optimal effective training pitch angle range:
wherein the content of the first and second substances,
the angle deviation coefficient (value is 0.85-0.92) between the included angle between the head of the user and the horizontal direction and the optimal effective training pitch angle range is epsilon2Is the error coefficient of the angle sensor, t2Is the detection time of the angle sensor, thetastiIs an angle detection value theta at the ith moment of the angle sensormaxFor optimum effective training of maximum pitch angle, thetaminTraining the minimum elevation angle for the best and effective training, wherein the elevation angle and the elevation angle are positive numbers;
step three: the controller compares the distance deviation coefficient between the actual distance between the user and the white wall and the optimal effective training distance range, if the distance deviation coefficient between the actual distance between the user and the white wall and the optimal effective training distance range is larger than the preset distance deviation coefficient between the actual distance between the user and the white wall and the optimal effective training distance range, the controller controls the light beam change-over switch to be converted into blue light, the user automatically adjusts the distance between the light beam change-over switch and the white wall, when the user adjusts the position in place, the blue light is turned off, the controller compares the angle deviation coefficient between the included angle between the head of the user and the horizontal direction and the optimal effective training pitch angle range with the preset angle deviation coefficient between the included angle between the head of the user and the horizontal direction and the optimal effective training pitch angle range, and if the angle deviation coefficient between the included angle between the head of the user and the horizontal direction and the optimal effective training pitch angle range is larger than the preset angle deviation coefficient between the head of the user and the horizontal direction and the optimal effective training pitch angle range And if the angle between the head of the user and the horizontal direction and the preset angle deviation coefficient between the optimal effective training pitch angle range are larger than the preset angle deviation coefficient, the controller controls the light beam conversion switch to convert the light beam into red light, and the user adjusts the position of a light spot of the red light on a white wall by himself to enable the light spot to be located at the central point of the light projection of the array light component 302.
The working principle and the beneficial effects of the technical scheme are as follows: training posture reminder system's design has been guaranteed that the user is right in the best effective training distance within range and the best effective training pitch angle within range intelligent optical vision trainer's use has improved user's training validity, detection and analysis unit's design, when the actual distance between user and the white wall surpasss the best effective training distance range or the contained angle of user head and horizontal direction surpasss the best effective training pitch angle within range, detection and analysis unit triggers suggestion unit work has been avoided the suggestion unit is in standby state always, has practiced thrift the resource, calculates the distance deviation between the actual distance between user and the white wall and the best effective training distance rangeIntroduction of D when coefficientmax(maximum distance for the best efficient training) and Dmin(minimum distance for said best efficient training) and cst*t1(the actual distance between the user and the white wall detected by the infrared sensor) is subtracted, so that the calculation result of the formula (1) is more accurate, and the calculation result of the formula (2) is obtained
Is t2Average detection value of the angle sensor in time.
Example 6
On the basis of embodiment 1 or 2, the method further comprises the following steps:
an ultrasonic ranging system, which is arranged on the projection installation body 2 and is used for prompting the user of the actual distance between the white wall projected by the projection component 301 and the user:
the ultrasonic distance measuring system comprises an ultrasonic transmitting unit, an ultrasonic receiving unit, a timer and a temperature sensor, wherein the ultrasonic transmitting unit, the ultrasonic receiving unit, the timer and the temperature sensor are electrically connected, and the ultrasonic distance measuring system comprises:
the ultrasonic wave transmitting unit is used for transmitting ultrasonic waves;
the ultrasonic receiving unit is used for receiving ultrasonic waves reflected by the white wall;
the timer is used for counting the interval time of the ultrasonic wave emitted by the ultrasonic wave emitting unit;
the timer is used for detecting the time from the ultrasonic wave transmitting unit transmitting the ultrasonic wave to the ultrasonic wave receiving unit receiving the ultrasonic wave;
the temperature sensor is used for detecting the temperature of the external environment;
calculating an actual distance between a white wall projected by the projection assembly 301 and a user based on the ultrasonic wave transmitting unit, the ultrasonic wave receiving unit, the timer and the temperature sensor:
wherein d isstThe actual distance between the white wall projected by the projection assembly 301 and the user, theta is the measurement error coefficient of the ultrasonic distance measurement system, TstIs a value detected by the temperature sensor, T0Is a reference temperature of the external environment,
the wave speed of the ultrasonic wave transmitted by the ultrasonic wave transmitting unit is t, the detection value of the timer is t, and the counting frequency of the timer is f;
if the actual distance between the white wall projected by the projection component 301 and the user exceeds the distance between the user and the white wall to be the optimal distance range for vision training, the ultrasonic distance measuring system prompts the user to adjust the distance between the user and the white wall.
The working principle and the beneficial effects of the technical scheme are as follows: the design of the ultrasonic distance measuring system avoids the situation that the actual distance between the white wall and the user exceeds the distance between the user and the white wall to achieve the optimal distance range for vision training, and ensures that the user can achieve the optimal using effect.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (8)
1. An intelligent optical vision training device is characterized by comprising a projection installation machine body (2), wherein an assembly installation cavity (2000) is formed in the projection installation machine body (2), and a projection training assembly (3) is arranged in the assembly installation cavity (2000);
projection training subassembly (3) are including installation casing (303), be equipped with electrical controller board (300), array light subassembly (302) and projection subassembly (301) in installation casing (303), electrical controller board (300) fixed connection be in subassembly installation cavity (2000) bottom, electrical controller board (300) are used for control give projection subassembly (301) with array light subassembly (302) power supply, simultaneous control the scintillation of array light subassembly (302), projection subassembly (301) are used for with the light of array light subassembly (302) is enlargied and is projected on the white wall.
2. The intelligent optical vision training device of claim 1,
the array light assembly (302) comprises an installation lamp panel (3020), the installation lamp panel (3020) is fixedly connected with the power supply controller board (300), one LED lamp (1) is arranged in the center of the installation lamp panel (3020), another LED lamps (1) are arranged around the installation lamp panel (3020) in an annular array, and the LED lamps (1) are electrically connected with the power supply controller board (300);
the power supply controller board (300) controls the plurality of LED lamps (1) to be sequentially lightened according to a certain sequence.
3. The intelligent optical vision training device of claim 1,
the projection assembly (301) comprises a prism (3010) and a plurality of lamp cup lenses (3011), the lamp cup lenses (3011) correspond to the LED lamps (1) one by one, a light source accommodating cavity (3012) is formed in the bottom of each lamp cup lens (3011), the light source accommodating cavity (3012) is used for accommodating the LED lamps, and the prism (3010) is installed right in front of the lamp cup lenses (3011);
each lamp cup lens (3011) is provided with different animal patterns.
4. The intelligent optical vision training device of claim 1,
be equipped with in projection installation organism (2) and adjust worm (405), it is located to adjust worm (405) projection installation organism (2) outer end key-type connection has manual regulation tooth (401), rotate through worm wheel pivot (4051) in projection installation organism (2) and be connected with two symmetrical arrangement's regulation worm wheel (4050), adjust worm wheel (4050) with adjust worm (405) intermeshing, the winding has elastic cord (201) in worm wheel pivot (4051).
5. The intelligent optical vision training device of claim 1,
elastic bands (201) are arranged on the left side and the right side of the projection installation machine body (2), one end, far away from the projection installation machine body (2), of each elastic band (201) is connected with an adjusting mechanism shell (200), and an elastic adjusting mechanism (4) is arranged in each adjusting mechanism shell (200);
the tightness adjusting mechanism (4) comprises a first meshing adjusting tooth (406), the first meshing adjusting tooth (406) is rotatably connected into the adjusting mechanism shell (200) through a connecting rotating shaft (407), one end of the connecting rotating shaft (407) far away from the first meshing adjusting tooth (406) is connected with a manual adjusting tooth (401), a first mechanism mounting cavity (400) is formed in the adjusting mechanism shell (200), a first rotating shaft (4000) is rotatably connected into the first mechanism mounting cavity (400), the first rotating shaft (4000) is positioned right above the first meshing adjusting tooth (406), a second meshing adjusting tooth (4001) and a winding drum (4002) are in keyed connection with the first rotating shaft (4000), the first meshing adjusting tooth (406) and the second meshing adjusting tooth (4001) are meshed with each other, and two tensioning ropes (4003) are wound on the winding drum (4002), two sides of the first mechanism installation cavity (400) are respectively provided with a second installation cavity (402), and the second installation cavity (402) is internally and slidably connected with a tightness adjusting main body (403);
the tightness adjusting main body (403) comprises a connecting rod mechanism (4030), the connecting rod mechanism (4030) comprises a plurality of connecting rods (4031) which are sequentially hinged end to end, an adjusting sliding groove (4020) is formed in the side wall of the second mounting cavity (402), an adjusting sliding block (4032) is fixedly connected to the first hinge point of the connecting rod mechanism (4030), the adjusting sliding block (4032) is connected in the adjusting sliding groove (4020) in a sliding manner, first buffering elastic pieces (4033) are fixedly connected to the upper side wall and the lower side wall of the adjusting sliding groove (4020), a first driving piece is arranged on the adjusting sliding block (4032) and used for driving the adjusting sliding block (4032) to move along the adjusting sliding groove (4020), a horizontal sliding block (4034) is hinged to the tail hinge point of the connecting rod mechanism (4030), and the horizontal sliding block (4034) can slide left and right along the second mounting cavity (402), a horizontal sliding groove (4021) with a horizontally arranged axis is formed in the second mounting cavity (402), an extending cylinder (4035) is connected in the horizontal sliding groove (4021) in a sliding manner, a linear driving piece (4036) is arranged on the extending cylinder (4035), the linear driving piece (4036) is used for driving the extending cylinder (4035) to move along the horizontal sliding groove (4021), one end, far away from the winding cylinder (4002), of the extending cylinder (4035) is connected with a clamping seat (404), an extending cylinder mounting hole (4037) is formed in the clamping seat (404), the extending cylinder (4035) is sleeved in the extending cylinder mounting hole (4037), a second buffering elastic piece (4038) is fixedly connected to the bottom of the extending cylinder mounting hole (4037), and the tensioning rope (4003) on the winding cylinder (4002) penetrates through the extending cylinder (4035) and is fixedly connected with the bottom of the extending cylinder mounting hole (4037), one end, away from the extending barrel mounting hole (4037), of the clamping seat (404) in the vertical direction is fixedly connected with the horizontal sliding block (4034), and one end, away from the horizontal sliding block (4034), of the clamping seat (404) is connected with the elastic band (201).
6. The intelligent optical vision training device of claim 1,
elastic band installation cavities (500) are symmetrically formed in two sides of the projection installation machine body (2), elastic band clamping mechanisms (5) are arranged in the elastic band installation cavities (500), the elastic band clamping mechanisms (5) are used for clamping elastic bands (201), elastic band installation grooves (5000) are formed in the elastic band installation cavities (500), the upper side wall and the lower side wall of each elastic band installation groove (5000) are communicated with the elastic band installation cavities (500), and the elastic band installation grooves (5000) are used for installing the elastic bands (201);
the elastic belt clamping mechanism (5) comprises two symmetrically arranged push buttons (501), two symmetrically arranged T-shaped slideways (502) are arranged in an elastic belt installation cavity (500), each T-shaped slideway (502) is divided into a horizontal slideway (5020) and a vertical slideway (5021), each push button (501) is slidably installed in the corresponding horizontal slideway (5020), a second driving piece is arranged on each push button (501) and used for driving each push button (501) to slide along the corresponding horizontal slideway (5020), a push table (5010) is arranged at one end of each push button (501), a first spring (5012) is sleeved on the part, between each push table (5010) and the corresponding projection installation machine body (2), one end, far away from each push button (501), of each push table (5010) is fixedly connected with a trapezoidal block (5011), and two symmetrically arranged inclined planes are arranged on each trapezoidal block (5011), a wedge-shaped block (5022) is symmetrically and slidably connected in the vertical slideway (5021) relative to the horizontal slideway (5020), one end of the wedge-shaped block (5022) close to the trapezoid block (5011) is provided with an inclined plane which is mutually matched with the inclined plane of the trapezoid block (5011), one end of the wedge-shaped block (5022) far away from the trapezoidal block (5011) is fixedly connected with the vertical slideway (5021) through a second spring (5023), a clamping driving table (5024) is also symmetrically and slidably connected in the vertical slideway (5021) relative to the horizontal slideway (5020), a connecting short rod (5026) is arranged on the clamping driving platform (5024), the clamping driving platform (5024) is connected with a first clamping mechanism (503) through the connecting short rod (5026), a driving rack (5025) is arranged on the clamping driving platform (5024), and the clamping driving platform (5024) is connected with a second clamping mechanism (504) through the driving rack (5025);
the first clamping mechanism (503) comprises a clamping connecting rod (5030), a connecting groove (5031) is formed in the clamping connecting rod (5030), the connecting short rod (5026) is connected in the connecting groove (5031) in a sliding manner, the middle of the connecting short rod (5026) is rotatably connected with the inner wall of the elastic band installation cavity (500), and one end, far away from the connecting short rod (5026), of the connecting short rod (5026) is hinged with a clamping block (5032);
the second clamping mechanism (504) comprises a first rotating shaft (5040) and a second rotating shaft (5041) which are rotatably connected in the elastic band installation cavity (500), the first rotating shaft (5040) and the second rotating shaft (5041) are located on the same horizontal line, the first rotating shaft (5040) is connected with a first clamping gear (5042) and a first chain wheel (5043) in a key manner, the second rotating shaft (5041) is connected with a second clamping gear (5044) and a second chain wheel (5045) in a key manner, the first clamping gear (5042) is meshed with the driving rack (5025), a meshing chain (5046) is arranged between the first chain wheel (5043) and the second chain wheel (5045), the meshing chain (5046) is meshed with the first chain wheel (5043) and the second chain wheel (5045), and a T-shaped clamping body (5047) is arranged between the second clamping gear (5044), the T-shaped clamping body (5047) comprises a double-faced meshing rod (5048) and a clamping brake block (5049), meshing teeth are arranged on the left side face and the right side face of the double-faced meshing rod (5048), and two clamping gears (5044) of the second clamp are meshed with the double-faced meshing rod (5048) through the meshing teeth.
7. The intelligent optical vision training device of claim 1, further comprising:
training posture reminder system, training posture reminder system sets up in projection installation organism (2), training posture reminder system is used for the suggestion user carries out whether the posture is qualified when eyesight training, training posture reminder system includes:
the detection and analysis unit is electrically connected with the prompt unit and is used for judging whether the training posture of the user is qualified or not, and if the training posture of the user is not qualified, the analysis unit triggers the prompt unit to work;
the detection and analysis unit comprises an angle sensor and an infrared sensor, the angle sensor and the infrared sensor are both arranged in the projection installation machine body (2), the angle sensor is used for detecting an included angle between the head of a user and the horizontal direction, the infrared sensor is used for detecting an actual distance between the user and a white wall, when the actual distance between the user and the white wall is within an optimal effective training distance range and the included angle between the head of the user and the horizontal direction is within the optimal effective training pitch angle range, the detection and analysis unit works repeatedly in a circulating mode, and when the actual distance between the user and the white wall exceeds the optimal effective training distance range or the included angle between the head of the user and the horizontal direction exceeds the optimal effective training pitch angle range, the detection and analysis unit triggers the prompt unit to work;
the prompting unit comprises a laser indicator and a controller, the controller is electrically connected with the laser indicator, the laser indicator is arranged at the geometric center of the projection installation body (2), the laser indicator can emit red light rays and blue light rays, a light beam conversion switch is arranged in the laser indicator, the light beam conversion switch can perform light beam conversion, and the controller controls the light beam conversion switch to convert light beams and comprises the following steps:
the method comprises the following steps: calculating a distance deviation coefficient between an actual distance between the user and the white wall and an optimal effective training distance range based on an infrared sensor and formula (1):
wherein the content of the first and second substances,
is the distance deviation coefficient between the actual distance between the user and the white wall and the optimal effective training distance range, ln is the natural logarithm with e as the base, epsilon1Is a measurement error coefficient of the infrared sensor, cstIs the actual speed of the electromagnetic wave of the infrared sensor propagating in the air, c0The speed of light propagation in air, DmaxMaximum distance for said optimal effective training, DminMinimum distance, t, for said optimal effective training1The time taken for the electromagnetic wave of the infrared sensor to propagate between the user and the white wall;
step two: based on an angle sensor and formula (2), calculating an angle deviation coefficient between the included angle of the head of the user and the horizontal direction and the optimal effective training pitch angle range:
wherein the content of the first and second substances,
the angle deviation coefficient between the included angle between the head of the user and the horizontal direction and the optimal effective training pitch angle range is epsilon2Is the error coefficient of the angle sensor, t2Is the detection time of the angle sensor, thetastiIs an angle detection value theta at the ith moment of the angle sensormaxFor optimum effective training of maximum pitch angle, thetaminTraining the minimum elevation angle for the best and effective training, wherein the elevation angle and the elevation angle are positive numbers;
step three: the controller compares the distance deviation coefficient between the actual distance between the user and the white wall and the optimal effective training distance range, if the distance deviation coefficient between the actual distance between the user and the white wall and the optimal effective training distance range is larger than the preset distance deviation coefficient between the actual distance between the user and the white wall and the optimal effective training distance range, the controller controls the light beam change-over switch to be converted into blue light, the user automatically adjusts the distance between the light beam change-over switch and the white wall, when the user adjusts the position in place, the blue light is turned off, the controller compares the angle deviation coefficient between the included angle between the head of the user and the horizontal direction and the optimal effective training pitch angle range with the preset angle deviation coefficient between the included angle between the head of the user and the horizontal direction and the optimal effective training pitch angle range, and if the angle deviation coefficient between the included angle between the head of the user and the horizontal direction and the optimal effective training pitch angle range is larger than the preset angle deviation coefficient between the head of the user and the horizontal direction and the optimal effective training pitch angle range And if the angle deviation coefficient is larger than the preset angle deviation coefficient between the included angle of the head of the user and the horizontal direction and the optimal effective training pitch angle range, the controller controls the light beam conversion switch to convert the light beam into red light, and the user adjusts the position of a light spot of the red light on a white wall by himself to enable the light spot to be located at the central point of the light projection of the array light component (302).
8. The intelligent optical vision training device of claim 1, further comprising:
an ultrasonic ranging system arranged on the projection installation body (2) and used for prompting the user of the actual distance between a white wall projected by the projection assembly (301) and the user:
the ultrasonic distance measuring system comprises an ultrasonic transmitting unit, an ultrasonic receiving unit, a timer and a temperature sensor, wherein the ultrasonic transmitting unit, the ultrasonic receiving unit, the timer and the temperature sensor are electrically connected, and the ultrasonic distance measuring system comprises:
the ultrasonic wave transmitting unit is used for transmitting ultrasonic waves;
the ultrasonic receiving unit is used for receiving ultrasonic waves reflected by the white wall;
the timer is used for counting the interval time of the ultrasonic wave emitted by the ultrasonic wave emitting unit;
the timer is used for detecting the time from the ultrasonic wave transmitting unit transmitting the ultrasonic wave to the ultrasonic wave receiving unit receiving the ultrasonic wave;
the temperature sensor is used for detecting the temperature of the external environment;
calculating an actual distance between a white wall projected by the projection assembly (301) and a user based on the ultrasonic wave transmitting unit, the ultrasonic wave receiving unit, the timer and the temperature sensor:
wherein d isstAn actual distance between a white wall projected by the projection assembly (301) and a user,
is a measurement error coefficient, T, of the ultrasonic ranging systemstIs a value detected by the temperature sensor, T0Is a reference temperature of the external environment,
the wave speed of the ultrasonic wave transmitted by the ultrasonic wave transmitting unit is t, the detection value of the timer is t, and the counting frequency of the timer is f;
if the actual distance between the white wall projected by the projection component (301) and the user exceeds the distance between the user and the white wall to be the optimal distance range for vision training, the ultrasonic distance measuring system prompts the user to adjust the distance between the user and the white wall.
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| CN113908026A (en) * | 2021-09-22 | 2022-01-11 | 郭忠良 | Open type eye muscle trainer and training method thereof |
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| US20200306122A1 (en) * | 2019-04-01 | 2020-10-01 | Heidi Kershaw | Therapeutic training device for autism |
| AU2019216657A1 (en) * | 2019-08-14 | 2021-03-04 | Guide Dogs NSW/ACT | Vision compensation screening |
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| CN113791499A (en) * | 2021-09-18 | 2021-12-14 | 深圳市恒必达电子科技有限公司 | VR device of intelligent acquisition and transmission natural environment index |
| CN113791499B (en) * | 2021-09-18 | 2022-06-24 | 深圳市恒必达电子科技有限公司 | VR device of intelligent acquisition and transmission natural environment index |
| CN113908026A (en) * | 2021-09-22 | 2022-01-11 | 郭忠良 | Open type eye muscle trainer and training method thereof |
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